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how does multiplication differ for NumPy Matrix vs Array classes?
The numpy docs recommend using array instead of matrix for working with matrices. However, unlike octave (which I was using till recently), * doesn't perform matrix multiplication, you need to use the function matrixmultipy(). I feel this makes the code very unreadable.
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Checkbox for nullable boolean
My model has a boolean that has to be nullable
19 Answers
19
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Batch file to delete files older than N days
I am looking for a way to delete all files older than 7 days in a batch file. I've searched around the web, and found some m>ex m>amples with hundreds of lines of code, and others that required installing m>ex m>tra command line utilities to accomplish the task.
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Saving and loading objects and using pickle
...coding=encoding,
errors=errors).load() EOFError
After you have read the contents of the file, the file pointer will be at the end of the file - there will be no further data to read. You have to rewind the file so that it will be read from the beginning again:
file.seek(0)
What you usually wan...
What's the difference between fill_parent and wrap_content?
...between fill_parent ( match_parent in API Level 8 and higher) and wrap_content ?
4 Answers
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How does StartCoroutine / yield return pattern really work in Unity?
...nce it is mentioned in the comments and the answers I am going to post the contents of the article here. This content comes from this mirror.
Unity3D coroutines in detail
Many processes in games take place over the course of multiple frames. You’ve got ‘dense’ processes, like pathfi...
Can pandas automatically recognize dates?
Today I was positively surprised by the fact that while reading data from a data file (for m>ex m>ample) pandas is able to recognize types of values:
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Why does this method print 4?
...s wondering what happens when you try to catch an StackOverflowError and came up with the following method:
7 Answers
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Tablet or Phone - Android
...AYOUT_SIZE_XLARGE = 4 according to developer.android.com/reference/android/content/res/… which can be used instead for API level less than 9.
– trgraglia
Sep 6 '12 at 16:46
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No visible cause for “Unm>ex m>pected token ILLEGAL”
...side of a string (e.g., the nodeValue of a DOM element that has no visible content), you might m>ex m>pect such string to be empty, when in fact it's not (even after applying String.trim).
ZWSP can also cause m>ex m>tra whitespace to be displayed on an HTML page, for m>ex m>ample when it's found between two <di...